I always wanted to be able to play the Moonlight Sonata - at least the 1st movement, which is still challenging enough for a self-taught musician like me. Fortunately, there are good teachers.
Minimoog Voyager Oldschool, played through a Digitech RP155 guitar FX pedal. For cases you don’t find your guitar.
Messing around with a HAPI steel drum, tuned in E minor (pentatonic).
Recreation of the live version of "Kill the King" from Rainbow's famous "On Stage" album.